# File lib/phusion_passenger/platform_info/operating_system.rb, line 77 def self.cpu_architectures if os_name == "macosx" arch = `uname -p`.strip if arch == "i386" # Macs have been x86 since around 2007. I think all of them come with # a recent enough Intel CPU that supports both x86 and x86_64, and I # think every OS X version has both the x86 and x86_64 runtime installed. major, minor, *rest = `sw_vers -productVersion`.strip.split(".") major = major.to_i minor = minor.to_i if major >= 10 || (major == 10 && minor >= 6) # Since Snow Leopard x86_64 is the default. ["x86_64", "x86"] else # Before Snow Leopard x86 was the default. ["x86", "x86_64"] end else arch end else arch = `uname -p`.strip # On some systems 'uname -p' returns something like # 'Intel(R) Pentium(R) M processor 1400MHz'. if arch == "unknown" || arch =~ / / arch = `uname -m`.strip end if arch =~ /^i.86$/ arch = "x86" elsif arch == "amd64" arch = "x86_64" end if arch == "x86" # Most x86 operating systems nowadays are probably running on # a CPU that supports both x86 and x86_64, but we're not gonna # go through the trouble of checking that. The main architecture # is what we usually care about. ["x86"] elsif arch == "x86_64" # I don't think there's a single x86_64 CPU out there # that doesn't support x86 as well. ["x86_64", "x86"] else [arch] end end end